Common Issues with Mitsubishi Galant Sigma - Troubleshooting Guide

By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on April 20, 2024
1. Common issues with the Mitsubishi Galant Sigma
1.1. Issues with early generation Galant Sigma models (1976-1980)
1.2. Issues with mid-generation Galant Sigma models (1981-1985)
1.3. Issues with later generation Galant Sigma models (1986-1987)
2. Engine-related issues with the Mitsubishi Galant Sigma
2.1. Issues with the Galant Sigma's 4G32 engine
2.2. Issues with the Galant Sigma's 4G54 engine
2.3. Issues with the Galant Sigma's turbocharged engines
3. Transmission and drivetrain issues with the Mitsubishi Galant Sigma
3.1. Issues with the Galant Sigma's manual transmission
3.2. Issues with the Galant Sigma's automatic transmission
3.3. Issues with the Galant Sigma's four-wheel drive system
4. Electrical and electronic issues with the Mitsubishi Galant Sigma
4.1. Issues with the Galant Sigma's alternator
4.2. Issues with the Galant Sigma's ignition system
4.3. Issues with the Galant Sigma's electronic control module (ECM)
5. Interior and exterior issues with the Mitsubishi Galant Sigma
5.1. Issues with the Galant Sigma's dashboard and instrumentation
5.2. Issues with the Galant Sigma's seats and upholstery
5.3. Issues with the Galant Sigma's body panels and paintwork
6. Conclusion and recommendations
6.1. Tips for maintaining and troubleshooting the Mitsubishi Galant Sigma
6.2. Recommended replacement parts and services for common issues
6.3. Final thoughts on owning and maintaining a Mitsubishi Galant Sigma.
FAQ: Common Issues with the Mitsubishi Galant Sigma
Example List of Mitsubishi Galant Sigma Engine Error Codes and Descriptions

1. Common issues with the Mitsubishi Galant Sigma

1.1. Issues with early generation Galant Sigma models (1976-1980)

The Mitsubishi Galant Sigma is a mid-sized sedan that was produced by Mitsubishi Motors from 1976 to 1987. During its production run, the Galant Sigma faced various issues and problems that affected its overall performance and reliability. In this article, we will focus on the issues with the early generation Galant Sigma models that were produced from 1976 to 1980.

One of the most common issues with the early generation Galant Sigma models was their engine performance. These models were equipped with the 4G32 engine, which was known for its poor fuel efficiency and reliability. Many owners reported experiencing engine stalling and hesitation issues, particularly at high speeds. In addition, the engine's cooling system was prone to leaks and overheating, which could cause significant damage if not addressed promptly.

Another issue with the early generation Galant Sigma models was their suspension system. Many owners reported experiencing excessive body roll and poor handling, particularly during high-speed turns. This was largely due to the Galant Sigma's soft suspension setup, which was not well-suited for high-performance driving.

The early generation Galant Sigma models were also prone to rust and corrosion issues. Many owners reported seeing rust spots and corrosion on the car's body panels, particularly around the wheel arches and undercarriage. This was a result of the Galant Sigma's poor rust protection, which was not up to par with other cars of the time.

Finally, many early generation Galant Sigma models suffered from electrical issues. These included faulty wiring, intermittent power loss, and malfunctioning electrical components such as the headlights and taillights. These issues were often caused by poor manufacturing practices and a lack of quality control.

1.2. Issues with mid-generation Galant Sigma models (1981-1985)

The mid-generation Galant Sigma models, which were produced from 1981 to 1985, faced their own set of issues and problems that impacted their reliability and overall performance. In this article, we will examine some of the common issues with the mid-generation Galant Sigma models.

One of the most significant issues with the mid-generation Galant Sigma models was their transmission and drivetrain system. Many owners reported experiencing transmission slipping and hesitation, particularly when shifting gears. This was largely due to the Galant Sigma's automatic transmission, which was not well-suited for high-performance driving. In addition, some owners reported issues with the four-wheel drive system, which could cause significant handling problems and decrease overall traction.

Another issue with the mid-generation Galant Sigma models was their engine performance. These models were equipped with the 4G54 engine, which was known for its poor fuel efficiency and lack of power. Many owners reported experiencing engine hesitation and poor acceleration, particularly when driving uphill or under heavy loads. In addition, the engine's cooling system was prone to leaks and overheating, which could cause significant engine damage if not addressed promptly.

The mid-generation Galant Sigma models were also prone to rust and corrosion issues, particularly on the car's body panels and undercarriage. This was largely due to the Galant Sigma's poor rust protection, which was not up to par with other cars of the time. Many owners reported seeing rust spots and corrosion on the car's body panels, particularly around the wheel arches and undercarriage.

Finally, the mid-generation Galant Sigma models suffered from electrical issues, particularly with the car's charging system. Many owners reported issues with the alternator, which could cause intermittent power loss and battery drain. In addition, some owners reported issues with the car's ignition system, which could cause difficulty starting the engine.

1.3. Issues with later generation Galant Sigma models (1986-1987)

The later generation Galant Sigma models, produced from 1986 to 1987, saw improvements in some areas but also faced their own set of issues and problems that impacted their reliability and performance. In this article, we will examine some of the common issues with the later generation Galant Sigma models.

One of the primary issues with the later generation Galant Sigma models was their engine performance. These models were equipped with the 4G63 engine, which was known for its lack of power and responsiveness. Many owners reported experiencing poor acceleration and difficulty passing other vehicles on the highway. In addition, the engine's cooling system was prone to leaks and overheating, which could cause significant engine damage if not addressed promptly.

Another issue with the later generation Galant Sigma models was their suspension system. Many owners reported experiencing a rough and bouncy ride, particularly when driving over uneven terrain or potholes. This was largely due to the Galant Sigma's stiff suspension system, which was not well-suited for comfortable driving on rough roads.

The later generation Galant Sigma models were also prone to rust and corrosion issues, particularly on the car's body panels and undercarriage. This was largely due to the Galant Sigma's poor rust protection, which was not up to par with other cars of the time. Many owners reported seeing rust spots and corrosion on the car's body panels, particularly around the wheel arches and undercarriage.

Finally, the later generation Galant Sigma models suffered from electrical issues, particularly with the car's charging system. Many owners reported issues with the alternator, which could cause intermittent power loss and battery drain. In addition, some owners reported issues with the car's ignition system, which could cause difficulty starting the engine.

2. Engine-related issues with the Mitsubishi Galant Sigma

2.1. Issues with the Galant Sigma's 4G32 engine

The Galant Sigma was produced with various engine options, including the 4G32 engine, which was known to have its own set of issues and problems. In this article, we will examine some of the common engine-related issues with the Galant Sigma's 4G32 engine.

One of the primary issues with the Galant Sigma's 4G32 engine was its lack of power and responsiveness. Many owners reported experiencing sluggish acceleration and difficulty passing other vehicles on the highway. This was largely due to the engine's low output, which was not sufficient for the car's size and weight. In addition, the engine's fuel economy was not particularly impressive, which could make the car expensive to operate over time.

Another issue with the Galant Sigma's 4G32 engine was its tendency to overheat. Many owners reported experiencing engine overheating, particularly in hot weather or during prolonged periods of driving. This was largely due to the engine's cooling system, which was not always able to effectively dissipate heat from the engine. Overheating could cause significant damage to the engine if not addressed promptly.

The Galant Sigma's 4G32 engine was also prone to oil leaks, which could cause low oil pressure and engine damage if not addressed promptly. Many owners reported seeing oil leaks from various parts of the engine, including the oil pan gasket, valve cover gasket, and oil pressure switch. In addition, the engine's oil consumption could be high, which could require more frequent oil changes and topping off.

Finally, the Galant Sigma's 4G32 engine was prone to carburetor issues, particularly with the car's idle speed and emissions. Many owners reported experiencing high or erratic idle speeds, which could cause the car to stall or have difficulty starting. In addition, the engine's emissions could be high, which could cause the car to fail emissions testing in areas with strict emissions regulations.

2.2. Issues with the Galant Sigma's 4G54 engine

The Galant Sigma was also equipped with the 4G54 engine, which had its own set of issues and problems. In this article, we will examine some of the common engine-related issues with the Galant Sigma's 4G54 engine.

One of the primary issues with the Galant Sigma's 4G54 engine was its tendency to develop oil leaks. Many owners reported seeing oil leaks from various parts of the engine, including the valve cover gasket, oil pan gasket, and rear main seal. These leaks could cause low oil pressure and engine damage if not addressed promptly. In addition, the engine's oil consumption could be high, which could require more frequent oil changes and topping off.

Another issue with the Galant Sigma's 4G54 engine was its tendency to develop valve train noise. Many owners reported hearing ticking or tapping sounds coming from the engine, particularly at idle. This was largely due to the engine's hydraulic lifters, which could become worn or damaged over time. This issue could be resolved by replacing the lifters or adjusting the valve clearances.

The Galant Sigma's 4G54 engine was also prone to carburetor issues, particularly with the car's idle speed and emissions. Many owners reported experiencing high or erratic idle speeds, which could cause the car to stall or have difficulty starting. In addition, the engine's emissions could be high, which could cause the car to fail emissions testing in areas with strict emissions regulations.

Finally, the Galant Sigma's 4G54 engine could also experience issues with its timing belt. If the timing belt broke or jumped timing, it could cause significant engine damage, including bent valves and damaged pistons. Owners should be sure to replace the timing belt at the recommended intervals to prevent this issue from occurring.

2.3. Issues with the Galant Sigma's turbocharged engines

Some Galant Sigma models were equipped with turbocharged engines, which offered increased performance but also came with their own set of issues and problems. In this article, we will examine some of the common engine-related issues with the Galant Sigma's turbocharged engines.

One of the primary issues with the Galant Sigma's turbocharged engines was their tendency to develop oil leaks. The higher pressures and temperatures associated with turbocharged engines could cause seals and gaskets to fail, leading to oil leaks from various parts of the engine. In addition, the turbocharger itself could develop oil leaks, which could cause low oil pressure and engine damage if not addressed promptly.

Another issue with the Galant Sigma's turbocharged engines was their tendency to experience turbo lag. This was particularly noticeable at low speeds, where the engine could feel sluggish and unresponsive until the turbo spooled up. This issue could be mitigated by upgrading the turbocharger or tuning the engine's management system, but it could also increase wear and tear on the engine and turbocharger.

The Galant Sigma's turbocharged engines were also prone to overheating, particularly if they were driven hard or used in hot climates. The increased heat generated by the turbocharger could cause the engine to run hotter than normal, which could lead to coolant leaks, overheating, and engine damage. Owners should be sure to monitor their engine's temperature and coolant levels to prevent this issue from occurring.

Finally, the Galant Sigma's turbocharged engines could also experience issues with their fuel systems. The higher pressures and temperatures associated with turbocharged engines could cause fuel pumps and injectors to fail, leading to poor engine performance and fuel economy. In addition, the engine's management system could struggle to maintain the correct air-fuel ratio, leading to rough running and reduced power.

3. Transmission and drivetrain issues with the Mitsubishi Galant Sigma

3.1. Issues with the Galant Sigma's manual transmission

The Mitsubishi Galant Sigma was offered with a manual transmission, which provided drivers with a more engaging driving experience. However, as with any manual transmission, there are certain issues that owners of Galant Sigma with manual transmissions may encounter.

One of the most common issues with the Galant Sigma's manual transmission is difficulty shifting gears. This can be caused by a variety of factors, such as worn or damaged synchronizers, a worn clutch or pressure plate, or a damaged or worn shifter linkage. Owners may also experience grinding or popping noises when shifting gears, which can be a sign of a more serious transmission problem.

Another common issue with the Galant Sigma's manual transmission is a slipping clutch. This occurs when the clutch disc fails to engage properly with the flywheel, which can cause the engine to rev without the car moving forward. A slipping clutch can be caused by worn clutch components, such as the clutch disc or pressure plate, or by hydraulic problems with the clutch master or slave cylinders.

In addition to these issues, owners of Galant Sigma with manual transmissions may also experience problems with the drivetrain. This can include issues with the driveshaft, differential, or CV joints. Symptoms of drivetrain issues can include vibration or shaking while driving, clunking noises when accelerating or decelerating, or difficulty maintaining proper speed while driving.

To address these issues, owners of Galant Sigma with manual transmissions should have their vehicles inspected by a qualified mechanic. In many cases, simple repairs or adjustments can be made to correct transmission or drivetrain issues. However, more serious problems may require the replacement of damaged or worn components. Regular maintenance and inspection of the transmission and drivetrain can help prevent these issues from occurring in the first place, ensuring that the Galant Sigma continues to provide a reliable and enjoyable driving experience for years to come.

3.2. Issues with the Galant Sigma's automatic transmission

The Mitsubishi Galant Sigma was available with both manual and automatic transmissions. The automatic transmission was a popular choice among drivers who preferred a more convenient and effortless driving experience. However, over time, issues with the automatic transmission of the Galant Sigma have been reported by many owners.

One of the most common issues with the automatic transmission of the Galant Sigma is rough shifting. This issue is usually caused by worn-out transmission fluid or a malfunctioning shift solenoid. In some cases, the problem can be solved by simply changing the transmission fluid. However, in more severe cases, the transmission may need to be rebuilt or replaced.

Another issue that has been reported with the automatic transmission of the Galant Sigma is slipping gears. This can be caused by a worn-out torque converter, a damaged clutch pack, or a malfunctioning valve body. If left unchecked, slipping gears can cause serious damage to the transmission and lead to costly repairs.

In addition to these issues, some owners have reported problems with the transmission overheating. This can be caused by a clogged transmission cooler or a malfunctioning transmission pump. Overheating can cause the transmission fluid to break down, leading to further damage to the transmission.

To prevent transmission issues with the Galant Sigma, it is important to regularly check and replace the transmission fluid as recommended by the manufacturer. Additionally, any signs of rough shifting, slipping gears, or overheating should be addressed promptly by a qualified mechanic to prevent further damage to the transmission.

3.3. Issues with the Galant Sigma's four-wheel drive system

The four-wheel drive system of the Mitsubishi Galant Sigma has its own set of issues that can arise over time. One common issue is with the transfer case, which can cause the vehicle to make grinding or whining noises while driving. This can often be caused by a lack of lubrication in the transfer case, which can cause excessive wear on the gears.

Another issue with the four-wheel drive system is with the front differential, which can develop leaks over time. This can result in a loss of lubrication and damage to the differential, which can cause it to fail. Additionally, the front axle joints can wear out over time, causing the vehicle to make clicking or popping noises while turning.

It is important to regularly inspect and maintain the four-wheel drive system to prevent these issues from occurring. This includes checking the transfer case and differential fluid levels, replacing worn axle joints, and addressing any leaks as soon as they are discovered.

If left unchecked, issues with the four-wheel drive system can cause significant damage to the vehicle and even result in a loss of control while driving. Therefore, it is important to address any issues with the four-wheel drive system as soon as they are noticed to ensure the continued safe operation of the vehicle.

4. Electrical and electronic issues with the Mitsubishi Galant Sigma

4.1. Issues with the Galant Sigma's alternator

The alternator is an essential component of the Galant Sigma's electrical system, as it is responsible for providing power to the car's battery and electrical systems while the engine is running. However, like any other electrical component, the alternator can experience issues over time that can cause problems for the car.

One common issue with the Galant Sigma's alternator is a failure to charge the battery. This can be caused by a variety of factors, including a faulty voltage regulator, a worn-out alternator belt, or a damaged alternator rotor or stator. When the battery is not receiving enough charge, the car may experience difficulty starting or may stall while driving.

Another issue that can occur with the Galant Sigma's alternator is a noisy or whining sound. This can be caused by a failing alternator bearing, which can lead to excessive vibration and noise. If left unaddressed, a failing alternator bearing can eventually cause the alternator to fail completely, resulting in a loss of power to the car's electrical systems.

In some cases, the Galant Sigma's alternator may also experience issues with overcharging the battery. This can be caused by a faulty voltage regulator or a damaged alternator diode. When the alternator overcharges the battery, it can cause the battery to overheat and potentially explode, which can be a serious safety hazard.

If any issues with the Galant Sigma's alternator are suspected, it is important to have the car inspected by a qualified mechanic. A mechanic can perform tests on the alternator and other electrical components to diagnose the issue and recommend the necessary repairs or replacements. It is important to address any issues with the alternator promptly, as a failing alternator can quickly lead to other problems with the car's electrical system.

4.2. Issues with the Galant Sigma's ignition system

The Galant Sigma's ignition system is responsible for starting the engine and keeping it running smoothly. One of the most common issues with the Galant Sigma's ignition system is a faulty distributor, which can cause a misfire, rough idling, and difficulty starting the engine. This can be caused by wear and tear on the distributor's internal components, as well as electrical issues such as a bad ignition coil or spark plugs.

Another issue that can occur with the Galant Sigma's ignition system is a faulty ignition switch, which can prevent the engine from starting or cause it to stall while driving. This can be caused by worn contacts within the switch or a loose connection, and may require replacement of the switch.

In addition, the Galant Sigma's ignition system may experience issues with its wiring, particularly with the ground wire that connects the ignition coil to the battery. A loose or corroded ground connection can cause a weak spark or prevent the ignition system from functioning altogether.

Overall, it's important to keep the Galant Sigma's ignition system in good working order in order to avoid issues with starting and running the engine. Regular maintenance such as replacing spark plugs, checking the distributor for wear and tear, and ensuring good electrical connections can help prevent problems with the ignition system.

4.3. Issues with the Galant Sigma's electronic control module (ECM)

The Galant Sigma's electronic control module (ECM) is responsible for managing various systems within the vehicle, such as the fuel injection, ignition, and emissions control. However, issues with the ECM can cause significant problems with the Galant Sigma's performance.

One common issue with the ECM in the Galant Sigma is failure of the capacitors within the unit. Over time, the capacitors can degrade or leak, causing the ECM to malfunction. This can result in a range of symptoms, including rough idling, stalling, and difficulty starting the engine.

Another issue with the Galant Sigma's ECM is related to the vehicle's sensors. If the sensors are not functioning correctly or are sending incorrect data to the ECM, it can cause the module to make incorrect adjustments to the engine's fuel injection and ignition timing. This can result in poor performance, reduced fuel economy, and increased emissions.

Additionally, the Galant Sigma's ECM is susceptible to damage from voltage spikes or electrical surges. This can occur during jump-starts or when the vehicle's battery is replaced. If the ECM is damaged in this way, it may need to be replaced entirely.

To avoid these issues with the Galant Sigma's ECM, regular maintenance and inspection of the unit is recommended. Additionally, it is important to ensure that any electrical work on the vehicle is performed by a qualified technician to prevent damage to the ECM or other electronic components.

5. Interior and exterior issues with the Mitsubishi Galant Sigma

5.1. Issues with the Galant Sigma's dashboard and instrumentation

The Galant Sigma's dashboard and instrumentation have been known to experience some issues. One of the most common issues is with the dashboard's lighting, which can become dim or fail completely. This can make it difficult to read the gauges and warning lights while driving, which can be a safety concern.

Another issue is with the instrument panel itself. The plastic on the panel can become brittle over time, causing cracks and warping. This can lead to difficulty reading the gauges, as well as a less attractive interior appearance.

Additionally, some Galant Sigma models have had issues with the speedometer and odometer failing or becoming inaccurate. This can make it difficult to accurately monitor speed and mileage, which can be a problem for both safety and maintenance reasons.

Finally, some Galant Sigma models have had issues with the windshield wipers, which can become stuck or fail to operate properly. This can be a significant safety concern, particularly during inclement weather. Overall, while the Galant Sigma's dashboard and instrumentation issues may not be as significant as other problems with the car, they can still impact the car's safety and functionality.

5.2. Issues with the Galant Sigma's seats and upholstery

The Mitsubishi Galant Sigma had a reputation for being a comfortable and well-appointed vehicle, but owners of early generation models (1976-1980) have reported issues with the quality and durability of the seats and upholstery. The seats in these models were prone to sagging and losing their support over time, which could make long drives uncomfortable for both the driver and passengers. Additionally, some owners have reported that the fabric used on the seats and door panels can wear and fade quickly, which can make the interior of the vehicle look worn and dated.

Mid-generation Galant Sigma models (1981-1985) generally had better quality upholstery, but some owners have still reported issues with the seats. Some owners have reported that the foam in the seats can break down over time, which can cause the seats to lose their shape and support. Others have reported that the fabric used on the seats and door panels can wear and fade quickly, which can be a cosmetic issue.

Later generation Galant Sigma models (1986-1987) generally had better quality seats and upholstery, but some owners have reported issues with the durability of the materials used. Some owners have reported that the fabric on the seats can wear and fade quickly, especially in vehicles that are frequently exposed to sunlight. Additionally, some owners have reported that the stitching on the seats can come apart over time, which can lead to tears and other damage.

Overall, the seat and upholstery issues with the Mitsubishi Galant Sigma are mostly cosmetic in nature and do not affect the vehicle's performance or safety. However, for owners who value a well-maintained interior, these issues can be frustrating and may require repairs or replacement of the affected parts.

5.3. Issues with the Galant Sigma's body panels and paintwork

The Mitsubishi Galant Sigma, like many other cars, may experience issues with body panels and paintwork as it ages. One common issue is rust, which can form on the body panels over time, especially if the car has been exposed to moisture or salt on the roads. This can be particularly problematic in areas with harsh winters or near the coast. Once rust has started, it can quickly spread, causing structural damage to the car if not treated promptly.

Another issue that can arise with the Galant Sigma's body panels is dents or scratches. While minor dents and scratches may not affect the car's performance, they can be unsightly and may reduce the car's resale value. Additionally, if the damage is severe enough, it may require expensive repairs or replacement of the affected panel.

Paintwork issues can also be a concern for Galant Sigma owners. Fading, peeling, or chipping paint can make the car look older and less attractive, and may require repainting to restore the car's appearance. In some cases, the paintwork may be covered under warranty, but in other cases, the owner may be responsible for the cost of repairs.

To prevent or minimize these issues, it's important to maintain the car's body and paintwork regularly. This can include washing and waxing the car to remove dirt and debris that can cause scratches, and applying rust protection products to vulnerable areas. Additionally, it's important to address any damage to the body or paintwork promptly, before it has a chance to worsen.

6. Conclusion and recommendations

6.1. Tips for maintaining and troubleshooting the Mitsubishi Galant Sigma

Maintaining and troubleshooting your Mitsubishi Galant Sigma can help keep your car running smoothly and prevent potential issues from becoming major problems. Here are some tips to keep in mind:

1. Regularly change the oil and oil filter: The engine oil and filter should be changed every 3,000-5,000 miles to ensure proper lubrication and prevent engine damage.

2. Check the transmission fluid: The automatic transmission fluid should be checked regularly and changed as recommended by the manufacturer to prevent transmission problems.

3. Keep the cooling system in good condition: Make sure the coolant is at the proper level and that there are no leaks in the system. A malfunctioning cooling system can cause overheating and engine damage.

4. Replace the timing belt on schedule: The timing belt should be replaced according to the manufacturer's recommended schedule to prevent engine damage.

5. Pay attention to warning lights: If a warning light appears on the dashboard, don't ignore it. It could indicate a serious problem that needs to be addressed.

6. Keep the car clean: Regularly washing and waxing the car can help prevent rust and other exterior damage.

7. Address issues promptly: If you notice any unusual noises, vibrations, or other issues while driving your Galant Sigma, take it to a qualified mechanic as soon as possible. Early detection and repair can prevent small issues from turning into major problems.

In addition to these maintenance tips, it's also helpful to have a basic understanding of your car's systems and components. This can make troubleshooting easier if issues arise. You can find detailed information in the car's owner's manual or by consulting with a qualified mechanic.

Overall, taking good care of your Mitsubishi Galant Sigma can help prolong its lifespan and prevent costly repairs.

6.2. Recommended replacement parts and services for common issues

If you own a Mitsubishi Galant Sigma and are experiencing common issues, it may be necessary to replace certain parts or seek out specific services. One of the most common issues with the Galant Sigma is engine-related, so it's important to ensure that the engine is regularly maintained and serviced. This includes regular oil changes, air filter replacements, and spark plug replacements.

If you're experiencing issues with the Galant Sigma's transmission or drivetrain, it may be necessary to replace parts such as the clutch or transmission fluid. Additionally, if you're experiencing issues with the four-wheel drive system, it may be necessary to replace parts such as the transfer case or differentials.

For electrical and electronic issues, it may be necessary to replace the alternator, battery, or ignition system. If you're experiencing issues with the dashboard and instrumentation, it may be necessary to replace parts such as the instrument cluster or wiring harness.

If you're experiencing issues with the Galant Sigma's interior and exterior, it may be necessary to replace parts such as the seats, upholstery, or body panels. Additionally, if you're experiencing issues with the paintwork, it may be necessary to seek out professional detailing or repainting services.

Overall, it's important to regularly maintain and service your Mitsubishi Galant Sigma to prevent common issues from occurring. Additionally, if you do experience issues, it's important to seek out professional services and replacement parts to ensure that your vehicle remains in good working order.

6.3. Final thoughts on owning and maintaining a Mitsubishi Galant Sigma.

In conclusion, owning and maintaining a Mitsubishi Galant Sigma can be a rewarding experience, but it is not without its challenges. The Galant Sigma is a well-designed car, but it is important to be aware of the common issues that may arise with its engine, transmission, drivetrain, and electrical systems.

Regular maintenance is key to keeping a Galant Sigma running smoothly. It is recommended to follow the manufacturer's recommended maintenance schedule and to use genuine Mitsubishi parts when replacing worn or damaged components. For example, regular oil changes can help prevent engine issues, while replacing worn belts and hoses can prevent problems with the cooling and charging systems.

If a problem does arise, it is important to troubleshoot it promptly and accurately. This may require consulting a professional mechanic with experience working on Galant Sigmas. A reliable mechanic can help diagnose and fix issues with the car's engine, transmission, and electrical systems.

In addition to regular maintenance and prompt troubleshooting, it is also important to address any cosmetic issues with the car's interior and exterior. Regular cleaning and waxing can help prevent paint and upholstery damage, while addressing any rust or body damage promptly can help prevent further corrosion.

Overall, owning and maintaining a Mitsubishi Galant Sigma can be a rewarding experience for those who are willing to put in the time and effort to keep the car in top condition. With regular maintenance and prompt troubleshooting, a Galant Sigma can provide reliable transportation for many years to come.

Example List of Mitsubishi Galant Sigma Engine Error Codes and Descriptions

Engine Code/NameEngine Specs (L, Fuel, HP)Part CarError CodeDescription
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma11Crank Angle Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma13Intake Air Temperature Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma14Throttle Position Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma23Idle Switch Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma24Vehicle Speed Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma25Barometric Pressure Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma31Knock Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma41Throttle Position Sensor Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma51Switch Signal Circuit
4G63T2.0L Turbo Gasoline, 195HPGalant Sigma52Switch Signal Circuit
4D562.5L Diesel, 85HPGalant Sigma11Crank Angle Sensor Circuit
4D562.5L Diesel, 85HPGalant Sigma12Air Flow Sensor Circuit
4D562.5L Diesel, 85HPGalant Sigma14Throttle Position Sensor Circuit
4D562.5L Diesel, 85HPGalant Sigma23Idle Switch Circuit
4D562.5L Diesel, 85HPGalant Sigma24Vehicle Speed Sensor Circuit
4D562.5L Diesel, 85HPGalant Sigma31Knock Sensor Circuit
4D562.5L Diesel, 85HPGalant Sigma41Throttle Position Sensor Circuit
4D562.5L Diesel, 85HPGalant Sigma43Fuel Supply System
4D562.5L Diesel, 85HPGalant Sigma54Signal Circuit
4G931.8L Gasoline, 125HPGalant Sigma11Crankshaft Position Sensor Circuit
4G931.8L Gasoline, 125HPGalant Sigma12Intake Air Temperature Sensor Circuit
4G931.8L Gasoline, 125HPGalant Sigma13Throttle Position Sensor Circuit
4G931.8L Gasoline, 125HPGalant Sigma22Camshaft Position Sensor Circuit
4G931.8L Gasoline, 125HPGalant Sigma23Idle Switch Circuit
4G931.8L Gasoline, 125HPGalant Sigma24Vehicle Speed Sensor Circuit
4G931.8L Gasoline, 125HPGalant Sigma31Knock Sensor Circuit
4G931.8L Gasoline, 125HPGalant Sigma52Fuel Pump Relay Circuit
4G931.8L Gasoline, 125HPGalant Sigma53Power Supply Circuit
4G931.8L Gasoline, 125HPGalant Sigma54Signal Circuit
4G632.0L Gasoline, 145HPGalant Sigma11Crankshaft Position Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma12Intake Air Temperature Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma13Throttle Position Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma22Camshaft Position Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma23Idle Switch Circuit
4G632.0L Gasoline, 145HPGalant Sigma24Vehicle Speed Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma31Knock Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma41Throttle Position Sensor Circuit
4G632.0L Gasoline, 145HPGalant Sigma52Fuel Pump Relay Circuit
4G632.0L Gasoline, 145HPGalant Sigma53Power Supply Circuit
6A122.5L Gasoline, 170HPGalant Sigma11Crankshaft Position Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma12Intake Air Temperature Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma13Throttle Position Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma22Camshaft Position Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma23Idle Switch Circuit
6A122.5L Gasoline, 170HPGalant Sigma24Vehicle Speed Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma31Knock Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma41Throttle Position Sensor Circuit
6A122.5L Gasoline, 170HPGalant Sigma52Fuel Pump Relay Circuit
6A122.5L Gasoline, 170HPGalant Sigma53Power Supply Circuit
6G723.0L Gasoline, 195HPGalant Sigma11Crankshaft Position Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma12Intake Air Temperature Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma13Throttle Position Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma22Camshaft Position Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma23Idle Switch Circuit
6G723.0L Gasoline, 195HPGalant Sigma24Vehicle Speed Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma31Knock Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma41Throttle Position Sensor Circuit
6G723.0L Gasoline, 195HPGalant Sigma52Fuel Pump Relay Circuit
6G723.0L Gasoline, 195HPGalant Sigma53Power Supply Circuit
6A132.5L Gasoline, 165HPGalant SigmaP0105Manifold Absolute Pressure/Barometric Pressure Circuit
6A132.5L Gasoline, 165HPGalant SigmaP0106Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
6A132.5L Gasoline, 165HPGalant SigmaP0110Intake Air Temperature Circuit
6A132.5L Gasoline, 165HPGalant SigmaP0115Engine Coolant Temperature Circuit
6A132.5L Gasoline, 165HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch A Circuit
6A132.5L Gasoline, 165HPGalant SigmaP0121Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
6A132.5L Gasoline, 165HPGalant SigmaP0125Insufficient Coolant Temperature for Closed Loop Fuel Control
6A132.5L Gasoline, 165HPGalant SigmaP0130O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
6A132.5L Gasoline, 165HPGalant SigmaP0134O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
6A132.5L Gasoline, 165HPGalant SigmaP0135O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0105Manifold Absolute Pressure/Barometric Pressure Circuit
6G723.0L Gasoline, 205HPGalant SigmaP0106Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
6G723.0L Gasoline, 205HPGalant SigmaP0110Intake Air Temperature Circuit
6G723.0L Gasoline, 205HPGalant SigmaP0115Engine Coolant Temperature Circuit
6G723.0L Gasoline, 205HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch A Circuit
6G723.0L Gasoline, 205HPGalant SigmaP0121Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
6G723.0L Gasoline, 205HPGalant SigmaP0125Insufficient Coolant Temperature for Closed Loop Fuel Control
6G723.0L Gasoline, 205HPGalant SigmaP0130O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0134O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0135O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0141O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
6G723.0L Gasoline, 205HPGalant SigmaP0150O2 Sensor Circuit Malfunction (Bank 2 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0154O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0155O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0171System Too Lean (Bank 1)
6G723.0L Gasoline, 205HPGalant SigmaP0174System Too Lean (Bank 2)
6G723.0L Gasoline, 205HPGalant SigmaP0201Injector Circuit Malfunction - Cylinder 1
6G743.5L Gasoline, 215HPGalant SigmaP0105Manifold Absolute Pressure/Barometric Pressure Circuit
6G743.5L Gasoline, 215HPGalant SigmaP0106Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
6G743.5L Gasoline, 215HPGalant SigmaP0110Intake Air Temperature Circuit
6G743.5L Gasoline, 215HPGalant SigmaP0115Engine Coolant Temperature Circuit
6G743.5L Gasoline, 215HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch A Circuit
6G743.5L Gasoline, 215HPGalant SigmaP0121Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
6G743.5L Gasoline, 215HPGalant SigmaP0125Insufficient Coolant TemperatureTable 10: 1996-2004 Mitsubishi Galant Sigma 3.5L Engine Error Codes (cont.)
6G743.5L Gasoline, 215HPGalant SigmaP0171System Too Lean (Bank 1)
6G743.5L Gasoline, 215HPGalant SigmaP0174System Too Lean (Bank 2)
6G743.5L Gasoline, 215HPGalant SigmaP0300Random/Multiple Cylinder Misfire Detected
6G743.5L Gasoline, 215HPGalant SigmaP0301Cylinder 1 Misfire Detected
6G743.5L Gasoline, 215HPGalant SigmaP0302Cylinder 2 Misfire Detected
6G743.5L Gasoline, 215HPGalant SigmaP0303Cylinder 3 Misfire Detected
6G743.5L Gasoline, 215HPGalant SigmaP0304Cylinder 4 Misfire Detected
6G743.5L Gasoline, 215HPGalant SigmaP0335Crankshaft Position Sensor "A" Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0401Exhaust Gas Recirculation (EGR) Flow Insufficient Detected
6G743.5L Gasoline, 215HPGalant SigmaP0441Evaporative Emission Control System Incorrect Purge Flow
6G743.5L Gasoline, 215HPGalant SigmaP0442Evaporative Emission Control System Leak Detected (Small Leak)
6G743.5L Gasoline, 215HPGalant SigmaP0443Evaporative Emission Control System Purge Control Valve Circuit
6G743.5L Gasoline, 215HPGalant SigmaP0455Evaporative Emission Control System Leak Detected (Large Leak)
6G743.5L Gasoline, 215HPGalant SigmaP0505Idle Control System Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0560System Voltage Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0601Internal Control Module Memory Check Sum Error
6G743.5L Gasoline, 215HPGalant SigmaP0700Transmission Control System (MIL Request)
6G743.5L Gasoline, 215HPGalant SigmaP0720Output Speed Sensor Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0740Torque Converter Clutch Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0750Shift Solenoid "A" Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0755Shift Solenoid "B" Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0760Shift Solenoid "C" Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP0770Shift Solenoid "E" Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1300Ignition Coil 1 Primary Feedback Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1305Ignition Coil 2 Primary Feedback Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1310Ignition Coil 3 Primary Feedback Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1320Ignition Coil 5 Primary Feedback Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1325Ignition Coil 6 Primary Feedback Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1400Sub-Throttle Position Sensor Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1401Sub-Throttle Position Sensor Range/Performance
6G743.5L Gasoline, 215HPGalant SigmaP1402Sub-Throttle Position Sensor Circuit Low Input
6G743.5L Gasoline, 215HPGalant SigmaP1403Sub-Throttle Position Sensor Circuit High Input
6G743.5L Gasoline, 215HPGalant SigmaP1456Fuel Tank Pressure Control System Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1500Alternator FR Terminal Circuit
6G743.5L Gasoline, 215HPGalant SigmaP1501Alternator FR Terminal No Voltage
6G743.5L Gasoline, 215HPGalant SigmaP1503Alternator FR Terminal Connection Problem
6G743.5L Gasoline, 215HPGalant SigmaP1504Alternator FR Terminal Circuit Low Input
6G743.5L Gasoline, 215HPGalant SigmaP1505Alternator FR Terminal Circuit High Input
6G743.5L Gasoline, 215HPGalant SigmaP1510Idle Control System Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1600Engine Control Module (ECM) Battery Backup Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1601Engine Control Module (ECM) RAM Memory Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1602Engine Control Module (ECM) EEPROM Memory Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1603Engine Control Module (ECM) Keep Alive Memory (KAM) Error
6G743.5L Gasoline, 215HPGalant SigmaP1705Direct Clutch Speed Sensor Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1765Linear Control Solenoid Valve Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1770Linear Control Solenoid Valve Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1780Park/Neutral Position (PNP) Switch Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1790Transmission Control Module (TCM) Power Control Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1795Throttle Position Sensor Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1800Engine Torque Signal Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1805Brake Switch Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1810Transmission Fluid Pressure Sensor/Switch 'F' Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1815Transmission Fluid Pressure Sensor/Switch 'F' Circuit Range/Performance
6G743.5L Gasoline, 215HPGalant SigmaP1825Transmission Range Sensor Circuit Range/Performance
6G743.5L Gasoline, 215HPGalant SigmaP1830Transmission Transfer Case Differential Lock-Up Solenoid Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1860Throttle Position (TP) Sensor Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP18754WD Low Switch Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP18804WD High Switch Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP1890Throttle Position Sensor Circuit Range/Performance
6G743.5L Gasoline, 215HPGalant SigmaP1900Engine RPM Input Circuit Malfunction
6G743.5L Gasoline, 215HPGalant SigmaP200AIntake Manifold Runner Control Stuck Open Bank 1
6G743.5L Gasoline, 215HPGalant SigmaP200BIntake Manifold Runner Control Stuck Closed Bank 1
6G743.5L Gasoline, 215HPGalant SigmaP2016Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 1
6G743.5L Gasoline, 215HPGalant SigmaP2021Intake Manifold Runner Position Sensor/Switch Circuit Malfunction Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2022Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2023Intake Manifold Runner Control Circuit/Open Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2024Intake Manifold Runner Control Circuit Low Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2025Intake Manifold Runner Control Circuit High Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2026Intake Manifold Runner Position Sensor/Switch Circuit High Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2027Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 2
6G743.5L Gasoline, 215HPGalant SigmaP2030Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2032Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2033Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2034Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2035Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2036Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2037Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2040Reductant Temperature Sensor Circuit Bank 1 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2041Reductant Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2
6G743.5L Gasoline, 215HPGalant SigmaP2042Reductant Temperature Sensor Circuit Low Bank 1 Sensor 2
6G753.8L Gasoline, 230HPGalant SigmaP0011"A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
6G753.8L Gasoline, 230HPGalant SigmaP0014"B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
6G753.8L Gasoline, 230HPGalant SigmaP0016Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
6G753.8L Gasoline, 230HPGalant SigmaP0031Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 1)
6G753.8L Gasoline, 230HPGalant SigmaP0032Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 1)
6G753.8L Gasoline, 230HPGalant SigmaP0037Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2)
6G753.8L Gasoline, 230HPGalant SigmaP0038Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 2)
6G753.8L Gasoline, 230HPGalant SigmaP0073Ambient Air Temperature Sensor Circuit High
6G753.8L Gasoline, 230HPGalant SigmaP0074Ambient Air Temperature Sensor Circuit Intermittent
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0105Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0125Insufficient Coolant Temperature for Closed Loop Fuel Control
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0130Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0134Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0171System Too Lean (Bank 1)
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0172System Too Rich (Bank 1)
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0220Throttle/Pedal Position Sensor/Switch "B" Circuit Malfunction
4G63T2.0L Gasoline Turbocharged, 210HPGalant SigmaP0300Random/Multiple Cylinder Misfire Detected
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0105Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0125Insufficient Coolant Temperature for Closed Loop Fuel Control
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0130Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0134Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0171System Too Lean (Bank 1)
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0172System Too Rich (Bank 1)
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0220Throttle/Pedal Position Sensor/Switch "B" Circuit Malfunction
6A13TT2.5L Gasoline Turbocharged, 280HPGalant SigmaP0300Random/Multiple Cylinder Misfire Detected
6G723.0L Gasoline, 205HPGalant SigmaP0105Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
6G723.0L Gasoline, 205HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction
6G723.0L Gasoline, 205HPGalant SigmaP0130Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0135Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
6G723.0L Gasoline, 205HPGalant SigmaP0171System Too Lean (Bank 1)
6G723.0L Gasoline, 205HPGalant SigmaP0172System Too Rich (Bank 1)
6G723.0L Gasoline, 205HPGalant SigmaP0220Throttle/Pedal Position Sensor/Switch "B" Circuit Malfunction
6G723.0L Gasoline, 205HPGalant SigmaP0300Random/Multiple Cylinder Misfire Detected
6G723.0L Gasoline, 205HPGalant SigmaP0335Crankshaft Position Sensor "A" Circuit Malfunction
4D562.5L Diesel, 100HPGalant SigmaP0101Mass or Volume Air Flow Circuit Range/Performance Problem
4D562.5L Diesel, 100HPGalant SigmaP0115Engine Coolant Temperature Circuit Malfunction
4D562.5L Diesel, 100HPGalant SigmaP0220Throttle/Pedal Position Sensor/Switch "B" Circuit Malfunction
4D562.5L Diesel, 100HPGalant SigmaP0234Turbocharger/Supercharger "A" Overboost Condition
4D562.5L Diesel, 100HPGalant SigmaP0401Exhaust Gas Recirculation Flow Insufficient Detected
4D562.5L Diesel, 100HPGalant SigmaP0403Exhaust Gas Recirculation Control Circuit Malfunction
4D562.5L Diesel, 100HPGalant SigmaP0404Exhaust Gas Recirculation Circuit Range/Performance Problem
4D562.5L Diesel, 100HPGalant SigmaP0405Exhaust Gas Recirculation Sensor "A" Circuit Low
4D562.5L Diesel, 100HPGalant SigmaP0406Exhaust Gas Recirculation Sensor "A" Circuit High
6G732.5L V6, Gasoline, 155HPGalant SigmaP0101Mass or Volume Air Flow Circuit Range/Performance Problem
6G732.5L V6, Gasoline, 155HPGalant SigmaP0115Engine Coolant Temperature Circuit Malfunction
6G732.5L V6, Gasoline, 155HPGalant SigmaP0120Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction
6G732.5L V6, Gasoline, 155HPGalant SigmaP0220Throttle/Pedal Position Sensor/Switch "B" Circuit Malfunction
6G732.5L V6, Gasoline, 155HPGalant SigmaP0400Exhaust Gas Recirculation Flow Malfunction
6G732.5L V6, Gasoline, 155HPGalant SigmaP0401Exhaust Gas Recirculation Flow Insufficient Detected
6G732.5L V6, Gasoline, 155HPGalant SigmaP0403Exhaust Gas Recirculation Control Circuit Malfunction
6G732.5L V6, Gasoline, 155HPGalant SigmaP0404Exhaust Gas Recirculation Circuit Range/Performance Problem
6G732.5L V6, Gasoline, 155HPGalant SigmaP0405Exhaust Gas Recirculation Sensor "A" Circuit Low

FAQ: Common Issues with the Mitsubishi Galant Sigma

What are some common issues with the Mitsubishi Galant Sigma?

Some common issues with the Mitsubishi Galant Sigma include transmission problems, oil leaks, electrical issues, and engine performance problems.

What kind of transmission problems are common in the Galant Sigma?

Some Galant Sigma models have had issues with their automatic transmissions, particularly those produced between 2000 and 2003. The transmissions in these models may fail prematurely, causing shifting issues or complete failure. Owners may notice slipping or delayed shifts, and in some cases, the car may not be able to move at all.

What are some common oil leak issues with the Galant Sigma?

Galant Sigma models have been known to develop oil leaks, particularly in the valve cover gasket and the oil pan. This can result in oil loss and engine damage if not addressed promptly. It is recommended to have these leaks repaired as soon as they are noticed.

What kind of electrical issues are common in the Galant Sigma?

Galant Sigma models have been known to have various electrical issues, particularly with the power windows and locks. Some models have also had problems with the alternator and battery. Electrical issues can be difficult to diagnose, so it is recommended to have a professional inspect the car if any electrical problems are noticed.

What are some common engine performance problems in the Galant Sigma?

Some Galant Sigma models may experience engine performance problems, particularly those with the 3.0L V6 engine. Owners may notice a loss of power or acceleration, misfires, and rough idling. Some of these issues may be caused by the ignition system or fuel delivery system, and may require professional diagnosis and repair.

Are there any recalls related to the Galant Sigma?

Yes, there have been several recalls related to the Galant Sigma over the years. These include recalls for issues with the airbag system, fuel tank, and suspension. It is recommended to check with a Mitsubishi dealership to see if any recalls apply to your specific Galant Sigma model.

How can I prevent or address these common issues in my Galant Sigma?

Regular maintenance and prompt repairs can help prevent or address common issues with the Galant Sigma. It is recommended to follow the manufacturer's maintenance schedule, have oil leaks repaired as soon as they are noticed, and have any other issues addressed promptly by a professional mechanic. Additionally, owners should stay up to date on any recalls or service bulletins related to their specific Galant Sigma model.

What are the common transmission problems in Mitsubishi Galant Sigma?

Some of the most common transmission problems reported in Mitsubishi Galant Sigma include delayed engagement, slipping, rough shifts, and failure to shift. These problems can be caused by low transmission fluid levels, worn or damaged components, or electrical issues.

What are the signs of a failing fuel pump in Mitsubishi Galant Sigma?

The signs of a failing fuel pump in Mitsubishi Galant Sigma include engine stalling, decreased fuel efficiency, difficulty starting the engine, and a whining sound coming from the fuel tank.

What are the causes of engine misfires in Mitsubishi Galant Sigma?

Engine misfires in Mitsubishi Galant Sigma can be caused by a variety of issues, including faulty ignition coils, spark plugs, or fuel injectors, clogged air filters, or a malfunctioning engine control module.

What are the symptoms of a bad alternator in Mitsubishi Galant Sigma?

Symptoms of a bad alternator in Mitsubishi Galant Sigma include dimming headlights, a dead battery, a warning light on the dashboard, and unusual noises coming from the engine.

What are the common brake problems in Mitsubishi Galant Sigma?

Common brake problems in Mitsubishi Galant Sigma include squeaking or squealing noises, vibrations while braking, decreased braking power, and a spongy brake pedal. These problems can be caused by worn brake pads, damaged rotors, or low brake fluid levels.

What are the common electrical problems in Mitsubishi Galant Sigma?

Common electrical problems in Mitsubishi Galant Sigma include issues with the battery, alternator, starter motor, fuses, and relays. Symptoms can include a dead battery, dimming headlights, electrical shorts, and malfunctioning accessories.

What are the signs of a failing water pump in Mitsubishi Galant Sigma?

Signs of a failing water pump in Mitsubishi Galant Sigma include overheating, coolant leaks, steam coming from the engine, and a whining noise coming from the engine.

What are the common suspension problems in Mitsubishi Galant Sigma?

Common suspension problems in Mitsubishi Galant Sigma include worn shocks and struts, broken or damaged springs, and misaligned wheels. Symptoms can include a rough ride, bouncing while driving, and uneven tire wear.

How often should I change the timing belt in my Mitsubishi Galant Sigma?

The recommended timing belt replacement interval for Mitsubishi Galant Sigma varies depending on the model year and engine type. It's generally recommended to replace the timing belt every 60,000 to 100,000 miles.

Are there any transmission issues with Mitsubishi Galant Sigma?

Yes, some owners of Galant Sigma have reported transmission problems, including issues with the automatic transmission not shifting properly or slipping between gears. This issue has been reported in various models and years of Galant Sigma, but seems to be more common in earlier generations. It is recommended to have the transmission checked and serviced regularly to prevent problems.

What are the common engine issues in Mitsubishi Galant Sigma?

Some of the most common engine problems reported in Galant Sigma include oil leaks, problems with the timing belt, and issues with the ignition system. The timing belt should be replaced according to the manufacturer's recommended schedule, and regular oil changes and maintenance can help prevent other engine problems. It is also important to address any issues with the ignition system, such as problems with the spark plugs or ignition coils, as soon as they arise to avoid more serious engine problems.

Are there any issues with the suspension system in Mitsubishi Galant Sigma?

Yes, some owners have reported issues with the suspension system, including problems with the struts, shocks, and bushings. These problems can lead to a rough ride, excessive tire wear, and other issues. Regular inspections and maintenance can help prevent suspension problems, and any issues with the suspension system should be addressed as soon as possible to avoid more serious problems.

What are the common electrical problems in Mitsubishi Galant Sigma?

Some common electrical issues reported in Galant Sigma include problems with the battery, alternator, and starter, as well as issues with the power windows and locks. These problems can be caused by faulty wiring, corrosion, or other issues. Regular maintenance and inspections can help prevent electrical problems, and any issues should be addressed as soon as they arise to avoid more serious problems.

Are there any safety issues with Mitsubishi Galant Sigma?

There have been some reports of safety issues with Galant Sigma, including problems with the airbags and issues with the brakes. Some owners have also reported problems with the headlights and other lighting systems. It is important to regularly inspect and maintain the safety systems in your Galant Sigma, and to address any issues as soon as possible to ensure the safety of you and your passengers.

Are there any common issues with the transmission in the Mitsubishi Galant Sigma?

Yes, some common issues include transmission slipping, delayed shifting, and rough shifting. These issues can be seen in various years and models of the Galant Sigma. It's important to regularly maintain your transmission fluid and get any issues diagnosed and repaired as soon as possible.

What are some common problems with the Galant Sigma's engine?

Some common engine problems with the Galant Sigma include oil leaks, overheating, and issues with the timing belt. These issues can occur in different years and models of the Galant Sigma. Regular maintenance and timely repairs can help prevent these issues.

Are there any known issues with the electrical system in the Galant Sigma?

Yes, some common electrical issues include problems with the alternator, battery, and starter. These problems can occur in different years and models of the Galant Sigma. Regular battery checks and maintenance can help prevent issues with the electrical system.

What are some common issues with the Galant Sigma's suspension system?

Some common suspension issues include worn shocks, broken springs, and issues with the steering system. These issues can be seen in various years and models of the Galant Sigma. Regular maintenance and repairs can help prevent suspension issues.

Are there any safety issues with the Galant Sigma?

While the Galant Sigma is generally considered a safe car, there have been some safety issues reported. These include airbag defects, brake failures, and issues with the car's electrical system. It's important to stay up to date on any safety recalls and to address any safety issues as soon as possible.

What are the common issues with the Mitsubishi Galant Sigma's suspension system?

The Mitsubishi Galant Sigma has been known to have issues with its suspension system, specifically with the rear suspension. Owners have reported problems with the suspension components, such as the shock absorbers and springs, wearing out prematurely. This can lead to a bouncy ride and reduced handling ability. Additionally, some owners have reported issues with the sway bar links and bushings, which can cause clunking noises and reduced stability.

Are there any known issues with the transmission of the Mitsubishi Galant Sigma?

Yes, there have been reports of transmission issues with the Mitsubishi Galant Sigma. Some owners have reported problems with the transmission slipping or failing completely, especially in earlier model years. The cause of these issues can vary, but they may be related to problems with the clutch, torque converter, or transmission fluid. It's important to have any transmission issues diagnosed and repaired by a qualified mechanic.

What are some common engine problems that owners of the Mitsubishi Galant Sigma have reported?

Some owners of the Mitsubishi Galant Sigma have reported engine problems, including issues with the timing belt and water pump. The timing belt is an important component of the engine, and if it fails, it can cause serious damage to the engine. It's important to have the timing belt and water pump replaced at the recommended intervals to prevent any potential problems. Other common engine issues can include oil leaks, overheating, and reduced performance.

Are there any electrical issues that owners of the Mitsubishi Galant Sigma should be aware of?

Yes, there have been reports of electrical issues with the Mitsubishi Galant Sigma. Some owners have reported problems with the alternator or battery, which can cause the car to not start or stall while driving. Other electrical issues can include problems with the power windows or locks, and issues with the lighting system.

What should I do if I experience any issues with my Mitsubishi Galant Sigma?

If you experience any issues with your Mitsubishi Galant Sigma, it's important to have the problem diagnosed and repaired by a qualified mechanic. Ignoring potential problems can lead to more serious and costly repairs down the line. It's also important to keep up with regular maintenance and follow the manufacturer's recommended service intervals to help prevent issues from occurring in the first place.


Brian Wong - Senior Reviews Editor of cars-directory.net

Brian Wong / Author

Brian Wong is an accomplished automotive journalist and editor with a passion for cars. With over a decade of experience in the industry, he has established himself as a trusted voice in the automotive community. Brian has written extensively about a wide range of topics in the field, from the latest trends in car design to innovative safety features and emerging technologies. As a senior reviews editor, he is responsible for test driving and analyzing the latest cars on the market, providing readers with accurate and objective reviews. His articles are widely read and respected for their depth of knowledge and analysis. Brian is committed to staying at the forefront of the latest developments in the automotive industry, and is dedicated to sharing his expertise and insights with his readers.



Updated on April 20, 2024